5310640348781 has 2 divisors, whose sum is σ = 5310640348782. Its totient is φ = 5310640348780.

The previous prime is 5310640348723. The next prime is 5310640348829. The reversal of 5310640348781 is 1878430460135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4930802332681 + 379838016100 = 2220541^2 + 616310^2 .

It is a cyclic number.

It is not a de Polignac number, because 5310640348781 - 2²² = 5310636154477 is a prime.

It is a super-2 number, since 2×5310640348781² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5310640348711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2655320174390 + 2655320174391.

It is an arithmetic number, because the mean of its divisors is an integer number (2655320174391).

Almost surely, 2^{5310640348781} is an apocalyptic number.

It is an amenable number.

5310640348781 is a deficient number, since it is larger than the sum of its proper divisors (1).

5310640348781 is an equidigital number, since it uses as much as digits as its factorization.

5310640348781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 5310640348781 in words is "five trillion, three hundred ten billion, six hundred forty million, three hundred forty-eight thousand, seven hundred eighty-one".